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Title: Fine-Tuning a Robust Metal–Organic Framework toward Enhanced Clean Energy Gas Storage

Journal Article · · Journal of the American Chemical Society
DOI:https://doi.org/10.1021/jacs.1c08749· OSTI ID:1833351
ORCiD logo [1]; ORCiD logo [1];  [1]; ORCiD logo [1]; ORCiD logo [1]; ORCiD logo [1];  [2]; ORCiD logo [3]; ORCiD logo [3]; ORCiD logo [2];  [2]; ORCiD logo [3]; ORCiD logo [1];  [4]; ORCiD logo [5]
  1. Northwestern Univ., Evanston, IL (United States). International Inst. for Nanotechnology
  2. National Renewable Energy Lab. (NREL), Golden, CO (United States)
  3. Northwestern Univ., Evanston, IL (United States)
  4. National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States). Center for Neutron Research
  5. Northwestern Univ., Evanston, IL (United States). International Inst. for Nanotechnology; Northwestern Univ., Evanston, IL (United States)

We believe that the development of adsorbents with molecular precision offers a promising strategy to enhance storage of hydrogen and methane-considered the fuel of the future and a transitional fuel, respectively-and to realize a carbon-neutral energy cycle. Herein we employ a postsynthetic modification strategy on a robust metal–organic framework (MOF), MFU-4l, to boost its storage capacity toward these clean energy gases. MFU-4l-Li displays one of the best volumetric deliverable hydrogen capacities of 50.2 g L–1 under combined temperature and pressure swing conditions (77 K/100 bar → 160 K/5 bar) while maintaining a moderately high gravimetric capacity of 9.4 wt %. Moreover, MFU-4l-Li demonstrates impressive methane storage performance with a 5–100 bar usable capacity of 251 cm3 (STP) cm–3 (0.38 g g–1) and 220 cm3 (STP) cm–3 (0.30 g g–1) at 270 and 296 K, respectively. Notably, these hydrogen and methane storage capacities are significantly improved compared to those of its isoreticular analogue, MFU-4l, and place MFU-4l-Li among the best MOF-based materials for this application.

Research Organization:
National Renewable Energy Laboratory (NREL), Golden, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Transportation Office. Fuel Cell Technologies Office; National Science Foundation (NSF)
Grant/Contract Number:
AC36-08GO28308; EE0008816; ECCS-1542205; DMR-1720139
OSTI ID:
1833351
Report Number(s):
NREL/JA-5900-81274; MainId:82047; UUID:0fcbe684-9234-41bf-863e-09db85ea5638; MainAdminID:63378
Journal Information:
Journal of the American Chemical Society, Vol. 143, Issue 45; ISSN 0002-7863
Publisher:
American Chemical Society (ACS)Copyright Statement
Country of Publication:
United States
Language:
English

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